A fluorescent probe for detection of Hg2+ ions constructed by tetramethyl cucurbit[6]uril and 1,2-bis(4-pyridyl)ethene
In this paper, tetramethyl cucurbit[6]uril (TMeQ[6]) and 1,2-bis(4-pyridyl)ethene (G) were used to construct a supramolecular fluorescent probe G@TMeQ[6]. The host–guest interaction between TMeQ[6] and G was investigated using 1H NMR spectroscopy, single-crystal X-ray diffraction and various experim...
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| Format: | Article |
| Language: | English |
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Beilstein-Institut
2023-06-01
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| Series: | Beilstein Journal of Organic Chemistry |
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| Online Access: | https://doi.org/10.3762/bjoc.19.63 |
| _version_ | 1827875183433613312 |
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| author | Xiaoqian Chen Naqin Yang Yue Ma Xinan Yang Peihua Ma |
| author_facet | Xiaoqian Chen Naqin Yang Yue Ma Xinan Yang Peihua Ma |
| author_sort | Xiaoqian Chen |
| collection | DOAJ |
| description | In this paper, tetramethyl cucurbit[6]uril (TMeQ[6]) and 1,2-bis(4-pyridyl)ethene (G) were used to construct a supramolecular fluorescent probe G@TMeQ[6]. The host–guest interaction between TMeQ[6] and G was investigated using 1H NMR spectroscopy, single-crystal X-ray diffraction and various experimental techniques. The results show that TMeQ[6] and G form an inclusion complex with a host–guest ratio of 1:1 and the equilibrium association constant (Ka) was 2.494 × 104 M−1. The G@TMeQ[6] fluorescent probe can sensitively recognize Hg2+ ions by fluorescence enhancement. The linear range is 0.33 × 10−5–1.65 × 10−5 mol·L−1, R2 = 0.9926, and the limit of detection is 4.12 × 10−8 mol·L−1. The fluorescent probe can be used to detect the concentration of Hg2+ ions in aqueous solution, and provides a theoretical basis for the development of new fluorescent probes for detecting heavy metal ions. |
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| format | Article |
| id | doaj.art-b05be24778ee499d8ccbbbacb2f030f8 |
| institution | Directory Open Access Journal |
| issn | 1860-5397 |
| language | English |
| last_indexed | 2024-03-12T17:03:11Z |
| publishDate | 2023-06-01 |
| publisher | Beilstein-Institut |
| record_format | Article |
| series | Beilstein Journal of Organic Chemistry |
| spelling | doaj.art-b05be24778ee499d8ccbbbacb2f030f82023-08-07T08:43:25ZengBeilstein-InstitutBeilstein Journal of Organic Chemistry1860-53972023-06-0119186487210.3762/bjoc.19.631860-5397-19-63A fluorescent probe for detection of Hg2+ ions constructed by tetramethyl cucurbit[6]uril and 1,2-bis(4-pyridyl)etheneXiaoqian Chen0Naqin Yang1Yue Ma2Xinan Yang3Peihua Ma4Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang 550025, China Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang 550025, China Guiyang College of Humanities and Science, Guiyang 550025, ChinaKey Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang 550025, China Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang 550025, China In this paper, tetramethyl cucurbit[6]uril (TMeQ[6]) and 1,2-bis(4-pyridyl)ethene (G) were used to construct a supramolecular fluorescent probe G@TMeQ[6]. The host–guest interaction between TMeQ[6] and G was investigated using 1H NMR spectroscopy, single-crystal X-ray diffraction and various experimental techniques. The results show that TMeQ[6] and G form an inclusion complex with a host–guest ratio of 1:1 and the equilibrium association constant (Ka) was 2.494 × 104 M−1. The G@TMeQ[6] fluorescent probe can sensitively recognize Hg2+ ions by fluorescence enhancement. The linear range is 0.33 × 10−5–1.65 × 10−5 mol·L−1, R2 = 0.9926, and the limit of detection is 4.12 × 10−8 mol·L−1. The fluorescent probe can be used to detect the concentration of Hg2+ ions in aqueous solution, and provides a theoretical basis for the development of new fluorescent probes for detecting heavy metal ions.https://doi.org/10.3762/bjoc.19.631,2-bis(4-pyridyl)ethanefluorescent probehg2+ ion recognitionhost–guest chemistrytetramethyl cucurbit[6]uril |
| spellingShingle | Xiaoqian Chen Naqin Yang Yue Ma Xinan Yang Peihua Ma A fluorescent probe for detection of Hg2+ ions constructed by tetramethyl cucurbit[6]uril and 1,2-bis(4-pyridyl)ethene Beilstein Journal of Organic Chemistry 1,2-bis(4-pyridyl)ethane fluorescent probe hg2+ ion recognition host–guest chemistry tetramethyl cucurbit[6]uril |
| title | A fluorescent probe for detection of Hg2+ ions constructed by tetramethyl cucurbit[6]uril and 1,2-bis(4-pyridyl)ethene |
| title_full | A fluorescent probe for detection of Hg2+ ions constructed by tetramethyl cucurbit[6]uril and 1,2-bis(4-pyridyl)ethene |
| title_fullStr | A fluorescent probe for detection of Hg2+ ions constructed by tetramethyl cucurbit[6]uril and 1,2-bis(4-pyridyl)ethene |
| title_full_unstemmed | A fluorescent probe for detection of Hg2+ ions constructed by tetramethyl cucurbit[6]uril and 1,2-bis(4-pyridyl)ethene |
| title_short | A fluorescent probe for detection of Hg2+ ions constructed by tetramethyl cucurbit[6]uril and 1,2-bis(4-pyridyl)ethene |
| title_sort | fluorescent probe for detection of hg2 ions constructed by tetramethyl cucurbit 6 uril and 1 2 bis 4 pyridyl ethene |
| topic | 1,2-bis(4-pyridyl)ethane fluorescent probe hg2+ ion recognition host–guest chemistry tetramethyl cucurbit[6]uril |
| url | https://doi.org/10.3762/bjoc.19.63 |
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